CN210717777U - Multi-energy coupling utilization central heating system - Google Patents

Multi-energy coupling utilization central heating system Download PDF

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Publication number
CN210717777U
CN210717777U CN201921611510.7U CN201921611510U CN210717777U CN 210717777 U CN210717777 U CN 210717777U CN 201921611510 U CN201921611510 U CN 201921611510U CN 210717777 U CN210717777 U CN 210717777U
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China
Prior art keywords
heat
pipeline
boiler
heating system
heat pump
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CN201921611510.7U
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Inventor
甄浩然
冯文亮
穆振英
王帅
王珣玥
王峥
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Beijing Beihuo Lvgu Heating Technology Development Co Ltd
Beijing Beiran Huaneng Technology Development Co ltd
BEIJING PUBLIC UTILITY RESEARCH INSTITUTE
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Beijing Beihuo Lvgu Heating Technology Development Co Ltd
Beijing Beiran Huaneng Technology Development Co ltd
BEIJING PUBLIC UTILITY RESEARCH INSTITUTE
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/20Solar thermal
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00Integration of renewable energy sources in buildings
    • Y02B10/70Hybrid systems, e.g. uninterruptible or back-up power supplies integrating renewable energies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02BCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/52Heat recovery pumps, i.e. heat pump based systems or units able to transfer the thermal energy from one area of the premises or part of the facilities to a different one, improving the overall efficiency

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Abstract

The embodiment of the utility model provides a central heating system is utilized in multi-energy coupling relates to heating system technical field, and main aim at provides one kind and compromises energy-conservation and environmental protection heating system. The main technical scheme adopted is as follows: the multiple energy source coupling utilizes central heating system includes: a heat supply network; a boiler, wherein a heat supply pipeline of the boiler is connected with a heat supply network; the heat absorption side of the heat exchanger is connected with a flue gas waste heat pipeline of the boiler; a solar heat collection device; the heat storage side of the heat exchanger, the solar heat collection device and the heat storage pipeline of the heat storage are connected in series to form a heat storage loop; the heat pump, the condenser pipeline of heat pump connects into the heat supply network, the evaporator pipeline of heat pump connects in series with heat release side, heat accumulator heat release pipeline of the heat exchanger separately. After the technology is utilized, the operation efficiency of the heat pump is improved, low-temperature water produced by the heat pump is used as a low-temperature heat source for recovering the waste heat of the flue gas, the energy conversion efficiency of the heat pump unit is improved while the waste heat of the flue gas is recovered, and the heat supply system which is energy-saving and environment-friendly is provided.

Description

Multi-energy coupling utilization central heating system
Technical Field
The embodiment of the utility model provides a relate to heating system technical field, especially relate to a multipotency source coupling utilizes multipotency source coupling and utilizes central heating system.
Background
In response to the call for clean energy, the nation frequently implements measures such as coal-to-electricity and coal-to-gas, and the like, so that the usage amount of coal is reduced, and the current situation of air pollution is improved.
In the existing heat supply mode, a coal-fired boiler is mainly adopted, if the coal-fired boiler is replaced by a gas-fired boiler, in order to reduce the loss of the flue gas waste heat of the gas-fired boiler, the gas-fired boiler is usually provided with a flue gas waste heat recovery device at present, and the mature technology is to adopt an absorption heat pump to recycle the flue gas waste heat. However, in actual operation, because the heat supply amount in the early and late cold periods and the difference between the daytime and the night exists, when the load of the boiler is reduced, the absorption heat pump and the boiler cannot be operated well in a combined manner, so that the problem of high waste heat waste amount of the boiler exists.
SUMMERY OF THE UTILITY MODEL
In view of this, the embodiment of the utility model provides a multiple energy coupling utilizes central heating system, and main aim at provides a heat supply system who takes into account energy-conservation and environmental protection.
In order to achieve the above object, the embodiment of the present invention mainly provides the following technical solutions:
an embodiment of the utility model provides a multiple energy source coupling utilizes central heating system, include:
a heat supply network;
the heat supply pipeline of the boiler is connected with the heat supply network;
the heat absorption side of the heat exchanger is connected with a flue gas waste heat pipeline of the boiler;
a solar heat collection device;
the heat-storage side of the heat exchanger, the solar heat collection device and the heat-storage pipeline of the heat accumulator are connected in series to form a heat-storage loop;
and a condenser pipeline of the heat pump is connected into the heat supply network, and an evaporator pipeline of the heat pump is respectively connected with the heat release side of the heat exchanger and the heat release pipeline of the heat accumulator in series.
The embodiment of the utility model provides an aim and solve its technical problem still can adopt following technical measure to further realize.
Optionally, the above-mentioned multiple energy sources are coupled to utilize a central heating system, wherein the heat pump is a voltage compression heat pump.
Optionally, in the centralized heating system using multiple energy sources in a coupled manner, the heating network includes a heating network water supply pipeline and a heating network water return pipeline, the heating network water supply pipeline is respectively connected to a water outlet pipeline of the boiler heating pipeline and a water outlet pipeline of the heat pump condenser pipeline, and the heating network water return pipeline is connected to a water inlet pipeline of the boiler heating pipeline;
and the water outlet pipeline of the heat pump condenser pipeline is connected to the water inlet pipeline of the boiler heat supply pipeline, and the heat pump condenser pipeline is provided with a switching valve.
Optionally, the central heating system is used in a multi-energy coupling manner, wherein a switching valve is arranged in an evaporator pipeline of the heat pump.
Optionally, the multi-energy-source coupling central heating system includes an evaporator pipeline of the heat pump, where the evaporator pipeline includes a first branch and a second branch, a water inlet of the first branch is connected to a water outlet of the heat-releasing side of the heat exchanger, a water outlet of the first branch is connected to a water inlet of the heat-releasing side of the heat exchanger, a water inlet of the second branch is connected to a water outlet of the heat-releasing pipeline of the heat accumulator, and a water outlet of the second branch is connected to a water inlet of the heat-releasing pipeline of the heat accumulator;
the water outlet of the heat-releasing side of the heat exchanger is connected with the water inlet of the solar heat-collecting device, the water outlet of the solar heat-collecting device is connected with the water inlet of the heat-accumulator heat-accumulating pipeline, and the water outlet of the heat-accumulator heat-accumulating pipeline is connected with the water inlet of the heat-releasing side of the heat exchanger.
Optionally, in the central heating system based on multi-energy coupling, the first branch, the second branch, and the heating network are respectively provided with a water pump.
Optionally, the above-mentioned multiple energy sources are coupled to utilize a central heating system, wherein the heat pump is an absorption heat pump.
Optionally, the aforementioned multiple energy sources are coupled to use a central heating system, wherein the boiler is a gas boiler.
Borrow by above-mentioned technical scheme, the utility model discloses the multipotency source coupling that technical scheme provided utilizes central heating system to have following advantage at least:
the embodiment of the utility model provides an among the technical scheme, at the comparatively sufficient time quantum of solar energy, because indoor temperature is higher, the heat load of heat supply net is less, and the time quantum can be solitary open the boiler and provide heat load work this moment, and boiler flue gas waste heat is after the heat exchanger heat transfer, after solar heat collection device promotes the heat again, is saved in the heat accumulator. In the time period without solar energy, because the indoor temperature is lower, the heat load of the heat supply network is larger, the time period can be simultaneously started to provide heat load work with the boiler and the heat pump, the waste heat of the boiler flue gas is stored in the heat accumulator after being subjected to heat exchange by the heat exchanger, and the evaporator pipeline of the heat pump absorbs the heat energy obtained by the heat accumulator from the waste heat of the boiler flue gas and the solar energy. Compared with the prior art, the smoke waste heat quality is improved and then stored in the heat accumulator by the solar heat collection device, and the heat accumulation total amount of the heat accumulation tank is increased under the condition that the volume of the heat accumulator is not changed. In the time period without solar energy, the heat pump utilizes the heat stored in the heat accumulator, and after the technology is utilized, the operation efficiency of the heat pump is improved, and meanwhile, the low-temperature water prepared by the heat pump is used as a low-temperature heat source for recovering the waste heat of the flue gas, so that the energy conversion efficiency of the heat pump unit is improved while the waste heat of the flue gas is recovered, and the heat supply system which is energy-saving and environment-friendly is provided.
The above description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the embodiments of the present invention clearer and can be implemented according to the content of the description, the following detailed description is made with reference to the preferred embodiments of the present invention and accompanying drawings.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic view of a pipeline connection of a central heating system using multi-energy coupling according to an embodiment of the present invention.
Detailed Description
To further illustrate the technical means and effects adopted to achieve the objects of the embodiments of the present invention, the following detailed description will be given, with reference to the accompanying drawings and preferred embodiments, to the specific implementation, structure, features and effects of the multi-energy coupling central heating system according to the embodiments of the present invention. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
Fig. 1 is an embodiment of the multi-energy coupling central heating system provided by the present invention, please refer to fig. 1, an embodiment of the present invention provides a multi-energy coupling central heating system, comprising: a heating network, a boiler 10, a heat exchanger 20, a solar heat collection device 30, a heat accumulator 40 and a heat pump 50. The heat supply pipeline of the boiler 10 is connected to the heat supply network; the heat absorption side of the heat exchanger 20 is connected with a flue gas waste heat pipeline of the boiler 10; the heat-releasing side of the heat exchanger 20, the solar heat collection device 30 and the heat accumulator 40 are connected in series to form a heat accumulation loop; and a condenser pipeline of the heat pump 50 is connected to the heat supply network, and an evaporator pipeline of the heat pump 50 is respectively connected in series with the heat release side of the heat exchanger 20 and the heat release pipeline of the heat accumulator 40.
The embodiment of the utility model provides an among the technical scheme, at the comparatively sufficient time quantum of solar energy, because indoor temperature is higher, the heat load of heat supply net is less, and the time quantum can be solitary open the boiler and provide heat load work this moment, and boiler flue gas waste heat is after the heat exchanger heat transfer, after solar heat collection device promotes the heat again, is saved in the heat accumulator. In the time period without solar energy, because the indoor temperature is lower, the heat load of the heat supply network is larger, the time period can be simultaneously started to provide heat load work with the boiler and the heat pump, the waste heat of the boiler flue gas is stored in the heat accumulator after being subjected to heat exchange by the heat exchanger, and the evaporator pipeline evaporator of the heat pump absorbs the heat energy obtained by the heat accumulator from the waste heat of the boiler flue gas and the solar energy.
In the prior art, for flue gas waste heat recovery of a gas-fired boiler, the gas-fired boiler with a large tonnage generally adopts an absorption heat pump to recover the flue gas waste heat, and the boiler with a small tonnage still has a high exhaust gas temperature because deep recovery of the flue gas waste heat is not performed due to the capacity limit of the heat pump or the influence of investment economy. Meanwhile, the problem that the heat pump and the boiler are unreasonably matched exists in the process of waste heat recovery and matching of the large-tonnage boiler, and when the load at the early and late stages of the boiler heating season is reduced, the heat pump cannot be well combined with the boiler to operate, so that the exhaust gas temperature is high, and waste of the waste heat of the exhaust gas is caused.
With the requirement on clean heat supply, the coal-to-electricity conversion is gradually promoted, and an air source heat pump and an electric boiler become mainstream products for the coal-to-electricity conversion.
Solar energy has been developed as one of renewable energy sources, but the solar energy has problems of low energy density, low photothermal conversion efficiency, and the like, and a large heat collecting area is required to obtain more heat. Meanwhile, the intermittent and unstable solar energy also brings great challenges to the heat utilization of the solar energy, the heat storage becomes a main means for stably utilizing the solar energy, and the hot water layered heat storage technology at the present stage is a relatively economic and efficient energy storage technology.
Compared with the prior art, the smoke waste heat quality is improved and then stored in the heat accumulator by the solar heat collection device, and the heat accumulation total amount of the heat accumulation tank is increased under the condition that the volume of the heat accumulator is not changed. In the time period without solar energy, the heat pump utilizes the heat stored in the heat accumulator, and after the technology is utilized, the operation efficiency of the heat pump is improved, and meanwhile, the low-temperature water prepared by the heat pump is used as a low-temperature heat source for recovering the waste heat of the flue gas, so that the efficiency of the heat pump unit is improved while the waste heat of the flue gas is recovered, and the heat supply system which is energy-saving and environment-friendly is provided.
In the time period when the solar energy is sufficient, namely the time period in the daytime, the electricity price is higher in the peak period of electricity utilization. In the time period without solar energy, namely the time period at night, the electricity consumption is in the high and low valley period, and the electricity price is lower. The heat pump adopts a voltage compression type heat pump, is powered off in the daytime and is started in the night time, can effectively utilize valley electricity, and makes certain contribution to valley electricity consumption while supplying heat in a low price.
In response to a demand for reduced pollutant emissions, the boiler may be a gas boiler.
The heat exchanger can be a dividing wall type heat exchange or a direct contact type heat exchange, and the like, and the embodiment is not limited. In order to facilitate the connection and disconnection of the condenser pipeline of the heat pump to the heat supply network in the daytime and at night, in the multi-energy coupling and utilization centralized heating system, the heat supply network comprises a heat supply network water supply pipeline and a heat supply network water return pipeline, the heat supply network water supply pipeline is respectively connected to the water outlet pipeline of the heat supply pipeline of the boiler 10 and the water outlet pipeline of the condenser pipeline of the heat pump 50, and the heat supply network water return pipeline is connected with the water inlet pipeline of the heat supply pipeline of the boiler 10; the water outlet pipeline of the condenser pipeline of the heat pump 50 is connected to the water inlet pipeline of the heat supply pipeline of the boiler 10, and the condenser pipeline of the heat pump 50 is provided with switching valves 501 and 502. The number of the switching valves is not limited to one, and may be, for example, a water outlet line of the heat pump condenser circuit and a water inlet line of the heat pump condenser circuit, respectively.
During the daytime, when closing the heat pump, close the switching valve, heat supply network return water pipeline gets into boiler heat supply pipeline's oral siphon way alone, promotes the back with the return water temperature, carries to heat supply network supply channel.
And in the night time period, when the heat pump is started, the switching valve is opened, part of water in the return water pipeline of the heat supply network enters a condenser pipeline (condenser) of the heat pump, and the return water is conveyed to the water supply pipeline of the heat supply network after the return water temperature is raised. And the other part of water of the heat supply network water return pipeline enters a water inlet pipeline of the boiler heat supply pipeline, and is conveyed to a heat supply network water supply pipeline after the temperature of the return water is raised.
Of course, in practice, the boiler 10 heating pipeline may also be provided with a boiler heating valve 101.
In order to facilitate the connection and disconnection of the evaporator pipeline of the heat pump, the heat exchanger and the heat accumulator in the day and at night, in the multi-energy coupling and utilization centralized heating system, the evaporator pipeline of the heat pump is provided with a switching valve.
And in the daytime, when the heat pump is closed, the switching valve is closed.
And in the night time period, when the heat pump is started, the switching valve is opened, a part of cold water in the heat pump evaporator pipeline flows back to the water inlet pipeline of the heat accumulator heat release pipeline, and hot water in the water outlet pipeline of the heat accumulator heat release pipeline flows into the water inlet pipeline of the heat pump evaporator pipeline. And the other part of cold water in the heat pump evaporator pipeline flows back to the water inlet pipeline at the heat release side of the heat exchanger, and hot water in the water outlet pipeline at the heat release side of the heat exchanger flows into the water inlet pipeline of the heat pump evaporator pipeline.
In a specific implementation, the evaporator pipeline of the heat pump 50 includes a first branch and a second branch, a water inlet of the first branch is connected to a water outlet of the heat releasing side of the heat exchanger 20, the water outlet of the first branch is connected to a water inlet of the heat releasing side of the heat exchanger 20, a water inlet of the second branch is connected to a water outlet of the heat releasing pipeline of the heat accumulator 40, and a water outlet of the second branch is connected to a water inlet of the heat releasing pipeline of the heat accumulator 40; a water outlet of the heat-releasing side of the heat exchanger 20 is connected to a water inlet of the solar heat collection device 30, a water outlet of the solar heat collection device 30 is connected to a water inlet of the heat storage pipeline 40, and a water outlet of the heat storage pipeline 40 is connected to a water inlet of the heat-releasing side of the heat exchanger 20. In order to realize that the water path circulates in the manner of the above embodiment, water pumps 501, 502, 503 may be respectively disposed on the first branch, the second branch, and the heat supply network.
The switching valves 503, 504, 505, and 506 may be disposed in the water inlet pipeline of the first branch, the water outlet pipeline of the first branch, the water inlet pipeline of the second branch, and the water outlet pipeline of the second branch, but not limited thereto. Specifically, the heat storage circuit valve 401 may be provided in the heat storage circuit.
Besides the voltage compression heat pump, the voltage compression heat pump can be replaced by an absorption heat pump, and for a gas boiler with large tonnage, the absorption heat pump is used for recovering the waste heat of the flue gas. When the load is reduced to the lowest load of the heat pump in the daytime, the heat pump cannot be started, and the heat storage loop can be adopted to complete the waste heat recovery of the natural gas flue gas.
The embodiment of the utility model has the following advantage at least:
the deep flexible recovery of the flue gas waste heat of the small-tonnage boiler can be realized by the aid of the device 1.
2, the cop of the heat pump unit is improved, and the energy conversion efficiency is improved.
3, the heat storage temperature is increased by utilizing the solar heat collection device during heat storage, the heat storage temperature difference is increased, and the heat storage capacity of the heat storage device is improved.
4, the temperature of working media in the solar heat collecting device is reduced, the efficiency of the solar heat collecting device is improved, and the cost of solar heat utilization is reduced
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
It will be appreciated that the relevant features of the devices described above may be referred to one another. In addition, "first", "second", and the like in the above embodiments are for distinguishing the embodiments, and do not represent merits of the embodiments.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed apparatus should not be construed to reflect the intent as follows: rather, the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the components of the apparatus of the embodiments may be adapted and arranged in one or more arrangements different from the embodiments. The components of the embodiments may be combined into one component and, in addition, they may be divided into a plurality of sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the components of any apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination. The various component embodiments of the present invention may be implemented in hardware, or in a combination thereof.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or components not listed in a claim. The word "a" or "an" preceding a component or element does not exclude the presence of a plurality of such components or elements. The present invention can be implemented with the aid of a device comprising a number of different components. In the claims enumerating several means, several of these means may be embodied by one and the same item. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and any simple modification, equivalent change and modification made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims (8)

1. A multi-energy coupling utilization central heating system is characterized by comprising:
a heat supply network;
the heat supply pipeline of the boiler is connected with the heat supply network;
the heat absorption side of the heat exchanger is connected with a flue gas waste heat pipeline of the boiler;
a solar heat collection device;
the heat-storage side of the heat exchanger, the solar heat collection device and the heat-storage pipeline of the heat accumulator are connected in series to form a heat-storage loop;
and a condenser pipeline of the heat pump is connected into the heat supply network, and an evaporator pipeline of the heat pump is respectively connected with the heat release side of the heat exchanger and the heat release pipeline of the heat accumulator in series.
2. The multi-energy coupled central heating system according to claim 1,
the heat pump is a voltage compression heat pump.
3. The multi-energy coupled central heating system according to claim 2,
the heat supply network comprises a heat supply network water supply pipeline and a heat supply network water return pipeline, the heat supply network water supply pipeline is respectively connected to a water outlet pipeline of the boiler heat supply pipeline and a water outlet pipeline of the heat pump condenser pipeline, and the heat supply network water return pipeline is connected with a water inlet pipeline of the boiler heat supply pipeline;
and the water outlet pipeline of the heat pump condenser pipeline is connected to the water inlet pipeline of the boiler heat supply pipeline, and the heat pump condenser pipeline is provided with a switching valve.
4. A multi-energy coupled central heating system according to claim 3,
and the evaporator pipeline of the heat pump is provided with a switching valve.
5. A multi-energy coupled central heating system according to claim 3,
the evaporator side pipeline of the heat pump comprises a first branch and a second branch, a water inlet of the first branch is connected with a water outlet of the heat releasing side of the heat exchanger, a water outlet of the first branch is connected to a water inlet of the heat releasing side of the heat exchanger, a water inlet of the second branch is connected to a water outlet of the heat releasing pipeline of the heat accumulator, and a water outlet of the second branch is connected to a water inlet of the heat releasing pipeline of the heat accumulator;
the water outlet of the heat-releasing side of the heat exchanger is connected with the water inlet of the solar heat-collecting device, the water outlet of the solar heat-collecting device is connected with the water inlet of the heat-accumulator heat-accumulating pipeline, and the water outlet of the heat-accumulator heat-accumulating pipeline is connected with the water inlet of the heat-releasing side of the heat exchanger.
6. The multi-energy coupled central heating system according to claim 5,
the first branch, the second branch and the heat supply network are respectively provided with a water pump.
7. The multi-energy coupled central heating system according to claim 1,
the heat pump is an absorption heat pump.
8. The multi-energy coupled central heating system according to any one of claims 1-7, wherein the boiler is a gas boiler.
CN201921611510.7U 2019-09-25 2019-09-25 Multi-energy coupling utilization central heating system Active CN210717777U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112611010A (en) * 2020-11-30 2021-04-06 华北电力大学 Flexible adjusting system and method for power generation load of multi-heat-source cogeneration unit
CN114251710A (en) * 2021-12-27 2022-03-29 北京华源泰盟节能设备有限公司 Heat accumulating type flue gas waste heat recovery intermittent heating system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112611010A (en) * 2020-11-30 2021-04-06 华北电力大学 Flexible adjusting system and method for power generation load of multi-heat-source cogeneration unit
CN114251710A (en) * 2021-12-27 2022-03-29 北京华源泰盟节能设备有限公司 Heat accumulating type flue gas waste heat recovery intermittent heating system

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